Compact manipulation robot

B - Operations – Transporting – 25 – J

Patent

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Details

B25J 17/02 (2006.01)

Patent

CA 2678649

The invention relates to a parallel-type displacement device including at least three arms (2) each pivoting about a pivot axis, the pivot axes (3) defining a polygon (P) as seen from above, wherein each of the arms is actuated by an actuator (4) and each of the arms is further connected to a head (5) defining a small base through linking members (6) respectively articulated on the head and the arm, the hinges having two degrees of freedom and the head always maintaining its position and orientation, said device being characterised in that in a so-called neutral position, each arm is arranged so that, if drawing from the geometrical centre (C) of the polygon a straight line (D) that is parallel to the pivot axis of any of the arms, said straight line intersects the arm in question.

L'invention a pour objet un dispositif de déplacement du type parallèle comprenant au moins trois bras (2) pivotants chacun autour d'un axe de pivot, les axes (3) de pivots formant en vue de dessus un polygone (P), chacun des bras étant actionné par un actionneur (4), et chacun de ces bras étant, en outre, relié à une tête (5) formant une petite base par l'intermédiaire d'éléments (6) de liaison articulés respectivement sur la tête et sur le bras, les articulations étant à deux degrés de liberté, la tête gardant toujours son orientation et son inclinaison, ce dispositif étant caractérisé en ce qu'en position dite neutre des bras, chaque bras est disposé de telle sorte que si à partir du centre géométrique du polygone, on trace une droite (D) parallèle à l'axe de pivot de l'un quelconque des bras, cette droite passant par le centre (C) géométrique du polygone, ladite droite coupe ledit bras considéré.

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